/**
 * MOTOR 2 - RAPID FLASH DYNAMICS
 * Copyright (c) 2006-2008 Michael Baczynski http://www.polygonal.de
 * 
 * Based on Box2D by Erin Catto, http://www.box2d.org
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * 
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 */
package de.polygonal.motor2.dynamics.contact
{
	import de.polygonal.motor2.collision.pairwise.FeaturePair;
	import de.polygonal.motor2.dynamics.contact.ContactID;
	
	public class ContactPoint
	{
		/* debug/demo only */
		public var matched:Boolean = false;
		
		public var id:ContactID;
		public var feature:FeaturePair;
		
		public var x:Number;
		public var y:Number;
		
		public var sep:Number;
		
		public var velBias:Number;
		
		/* normal, tangent & position impulse */
		public var Pn:Number;
		public var Pt:Number;
		public var Pp:Number;
		
		/* normal & tangent contact mass */
		public var nMass:Number, tMass:Number;
		
		/* local & world space anchors */
		public var l_r1x:Number, l_r1y:Number;
		public var l_r2x:Number, l_r2y:Number;
		public var w_r1x:Number, w_r1y:Number;
		public var w_r2x:Number, w_r2y:Number;
		
		public function ContactPoint():void
		{
			init();
		}
		
		public function init():void
		{
			id = new ContactID();
			id.init();
			
			feature = new FeaturePair();
			feature.init();
			
			x = y = sep = velBias = Pn = Pt = Pp = nMass = tMass = 0;
		}
	}
}